Patents by Inventor Rainer Friehmelt

Rainer Friehmelt has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • METHOD FOR DETERMINING MATERIAL PROPERTIES FROM FOAM SAMPLES
    Publication number: 20230005128
    Abstract: The present invention is in the field of methods for determining material properties from foam samples. It relates to a computer-implemented method for determining a material property of a foam sample comprising (a) providing a representation of the sample, (b) extracting at least one structural feature from the representation, wherein the at least one structural feature comprises walls, struts, or nodes (c) providing the at least one structural feature to a material model suitable for obtaining at least one material property from the structural feature, and (d) outputting the at least one material property received from the material model.
    Type: Application
    Filed: December 1, 2020
    Publication date: January 5, 2023
    Inventors: Florian Niederhoefer, Victor Didier Perez Meza, Nikolaus Nestle, Rainer Friehmelt
  • Process for preparation of rubber mixtures containing silicon dioxide
    Patent number: 8252853
    Abstract: Rubber mixtures are prepared by using, alongside the other constituents, pyrogenically prepared silicon dioxide in the form of crusts whose tamped bulk density (to DIN EN ISO 787-11) is from 185 to 700 g/l.
    Type: Grant
    Filed: January 2, 2007
    Date of Patent: August 28, 2012
    Assignee: Evonik Degussa GmbH
    Inventors: Rainer Friehmelt, Joachim Fröhlich, Werner Niedermeier, Ralph Hofmann, Uwe Schachtely
  • Pyrogenically prepared silicon dioxide compacted to give crusts
    Patent number: 7842269
    Abstract: Pyrogenically prepared silicon dioxide is compacted to give crusts, in that it is subject to preliminary de-aeration, and is compacted to give crusts, and the crusts are broken and, if appropriate, classified. The tamped bulk density (to DIN EN ISO 787-11) of the silicon dioxide compacted to give crusts is from 185 to 700 g/l. It can be used as filler in rubber mixtures.
    Type: Grant
    Filed: January 4, 2007
    Date of Patent: November 30, 2010
    Assignee: Evonik Degussa GmbH
    Inventors: Uwe Schachtely, Ralph Hofmann, Günter Stein, Roland Schaffer, Rainer Friehmelt
  • PYROGENICALLY PREPARED SILICON DIOXIDE COMPACTED TO GIVE CRUSTS
    Publication number: 20100179269
    Abstract: Pyrogenically prepared silicon dioxide is compacted to give crusts, in that it is subject to preliminary de-aeration, and is compacted to give crusts, and the crusts are broken and, if appropriate, classified. The tamped bulk density (to DIN EN ISO 787-11) of the silicon dioxide compacted to give crusts is from 185 to 700 g/l. It can be used as filler in rubber mixtures.
    Type: Application
    Filed: January 4, 2007
    Publication date: July 15, 2010
    Inventors: Uwe Schachtely, Ralph Hofmann, Günter Stein, Roland Schaffer, Rainer Friehmelt
  • Process for Preparation of Rubber Mixtures Containing Silicon Dioxide
    Publication number: 20100010116
    Abstract: Rubber mixtures are prepared by using, alongside the other constituents, pyrogenically prepared silicon dioxide in the form of crusts whose tamped bulk density (to DIN EN ISO 787-11) is from 185 to 700 g/l.
    Type: Application
    Filed: January 2, 2007
    Publication date: January 14, 2010
    Inventors: Rainer Friehmelt, Joachim Fröhlich, Werner Niedermeier, Ralph Hofmann, Uwe Schachtely